Предмет: Математика, автор: Alina050

В одну коробку сложили футбольные и теннисные мячи, всего 13 мячей. Сколько в коробке теннисных сколько футбольных мячей, если футбольных мячей на 5 меньше, чем теннисных.

Нужно подробное решение.

Ответы

Автор ответа: grekk

всего 13

теннисных х

футбольных х-5

составим уравнение

х+х-5=13

2х=13+5

х=9 т.е. теннисных 9 мячей

х-5=4 шт.футбольных

Автор ответа: Hafsa

х+(х+5)=13

2х+5=13

2х=13-5

2х=8

х=8:2

х=4-футбольные мячи

1)4+5=9-теннисные мячи

Ответ:4, 9

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